Window adjuster



F. FOURNIER.

WINDOW ADJUSTER.

APPLICATION FILED MAR. 9, 1921.

lflg fifi o at nted July H, 1922;

l/V l E N TOE F PE 007/61? FOL/P/V/EIQ BY 0L ATTOP/VEY sierra STATES FREDERICK FOURNIER, OF SAN FRANCISCO, CALIFORNIA.

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Original application filed February 25, 1920, Serial Specification of Letters Patent.

Patented July ll 1, 1922.

March a, 1921. Serial No. 451,036.

To all whom it may concern.

Be it known that I, FREDERICK FoURNInR, a citizen of the'United States, residing at the city and county of San Francisco and State of California, have invented new and useful Improvements in lVindow Adjusters, of which the following is a specification.

This invention relates to a windowadjuster, and the present application-'is a division of an application'entitled Window construction, filed February 25, 1920, Serial No. 361,127.

It is the principal object of the present invention to provide a window construction especially adaptable tocasement windows whereby the window may be securely locked or may be swun to any intermediate position from close to full open and locked against movement in this position, the mechanism comprising swinging and locking means.

The present invention contemplates the use of a worm-operated swinging arm adapted to be slidablyand detacha-bly secured to a guide rail of a window frame and when operated to swing the window in or out as the case may be and lock the window against movement in an intermediate position. The construction also provides a floating hinge for the window whereby the entire frame may be movedacross the window or reversed.

The invention is illustrated by way of example in the accompanying drawings, in which:

Fig. 1is a fragmentary View in perspective illustrating the swinging and lock mechanism with which'the present invention is concerned.

Fig. 2 is a view in horizontal section disclosing other details of the present invention.

Fig. 3, is a fragmentary view in perspective illustrating the-detachable connection between the swinging arm, its slide and the guide rail.

In the drawings, 10 indicates a window frame provided with hinge plates 11. These plates are disposed atthe top and bottom of one of the stiles of the frame and are fitted with a vertical hinge rod 12.

Th concerned with the hinge construction but with swinging and locking means for the window.

-ment with'the pin. that swinging movement of the arm will e present invention is not particularly;

Theswinging means comprises a lever arm 16 which 15 mounted upon a pivot screw 17. The lever arm projects outwardly from a pocket 18 in the window sill, this pocket beenlarged base portion of semi-circular shape, a plurality of ear teeth 19 occur along the transverse of t is portion and are adapted to be in constant mesh with a worm gear 20 mounted within bearings 22. These bearings are carried upon a base plate 23 which is secured to the floor of the pocket. The end of the worm 'shaped with-the legs of-the channel section bent over to provide retaining flan es. A look finger 30 is pivoted to the bloc 28 by a screw 31 and is intended to normally swing over the top of pin 27 to prevent the accidental movement of the arm from engage- It will thus be evident cause sliding movement of the block 28 along the rail and this combined .action will in turn cause the'window 10 to swing on its hinge pivot. It will be seen that due to the pitch of the threaded worm and the teeth- ;eo. 361,127. Divided and this application filed 19 in engagement therewith the window will be locked against inward or outward movement' when pressure is exerted upon the window or thearm. i

, In operation of the present invention the window may be swung to any angle desired by rotation of the worm 20 through the medium-of the crank 25. When the worm is rotated to swing the arm force will be exerted againstthe sliding block 28. This will swing the window at the same time causing the along the guide rail 29. Thisvsliding action will be, of course, determined by the 16 outwardly, a

distances between the swinging center of block to slidement of parts may be made the arm and the hinge of the window. When the window has been swungto a desired position the worm gear 20 will act to lock the arm against rotation and will securely hold the window to prevent it from being either opened or closed. The numeral 33 indicates a conventional latch which co-operates with the plate 32 for locking the window when the latter is closed. 7

It will thus be seen that the construction here shown provides simple means whereby a casement window may be swung open to a desired a 1e and locked or by which it may be :lbsed and positively locked.

While I haveshown the preferred form of my invention as now known to me. it will be understood that various changes in the combination, construction and arrangeb those skilled in the art without departing i i'om the spirit of the invention as claimed.

Having thus described my invention, what I claim and desire to secure by Letters-Patent is- 1. The combination with a framed opening and a swinging closure therefor mounted to swing about vertical supports, of an operating mechanism for said closure comprising a pivoted. operating lever, a guide track carried by said closure adjacent the bottom thereof, a slidin block enga cable with the guide track an adapted to detachably connected to the operating lever and a keeger plate pivotally mounted on the sliding lock for retaining the operating ,lever in connection with the slidin block. 2. In combination with a frame opening and a reversible swinging closure therefor of an operating mechanism for said closure comprising a recess in the bottom of said framed opening, a worm mounted in said recess, a pivotedoperating arm having a toothed "segmental end in engagement with theworm, operating means for actuatin the worm so as to swing the arm, a

gulde track secured to the lower end of the closure, a T-shaped sliding block having its base engaging the guide track, a pin secured to the sliding block and adapted to connect the same and the free end of the operating lever, a keeper plate pivotally mounted on the block and adapted to secure't-he free end of the operating lever on the pin or to allow the lever to be removed from the pin when desiring to reverse the closure.

shaped member, adapted to engage an aper ture in the free end of the operating arm, a pivoted keeper plate so positioned that it may be swun to retain the arm end'in engement wit the pin or allow the same to instantly removed from the pin.

' FREDERICK Formula-n. 

